Virtuoso database service: packaged

svn path=/nixos/trunk/; revision=27332

modules/services/databases/virtuoso.nix

@@ -0,0 +1,85 @@
+{ config, pkgs, ... }:
+let
+  cfg = config.services.virtuoso;
+  virtuosoUser = "virtuoso";
+  stateDir = "/var/lib/virtuoso";
+in
+with pkgs.lib;
+{
+
+  ###### interface
+
+  options = {
+  
+    services.virtuoso = {
+    
+      enable = mkOption {
+        default = false;
+        description = "Whether to enable Virtuoso Opensource database server.";
+      };
+
+      config = mkOption {
+        default = "";
+        description = "Extra options to put into virtuoso configuration file.";
+      };
+
+      listenAddress = mkOption {
+	default = "1111";
+	example = "myserver:1323";
+        description = "ip:port or port to listen on.";
+      };
+
+      httpListenAddress = mkOption {
+	default = null;
+	example = "myserver:8080";
+        description = "ip:port or port for virtuoso HTTP server to listen on.";
+      };
+
+    };
+
+  };
+
+
+  ###### implementation
+
+  config = mkIf cfg.enable {
+
+    users.extraUsers = singleton
+      { name = virtuosoUser;
+        uid = config.ids.uids.virtuoso;
+        description = "virtuoso user";
+        home = stateDir;
+      };
+
+    jobs.virtuoso = {
+      name = "virtuoso";
+      startOn = "filesystem";
+
+      preStart = ''
+	mkdir -p ${stateDir}
+	chown ${virtuosoUser} ${stateDir}
+      '';
+
+      script = ''
+	cd ${stateDir}
+	${pkgs.virtuoso}/bin/virtuoso-t +foreground +configfile ${pkgs.writeText "virtuoso.ini" cfg.config}
+      '';
+    };
+
+    services.virtuoso.config = ''
+      [Database]
+      DatabaseFile=${stateDir}/x-virtuoso.db
+      TransactionFile=${stateDir}/x-virtuoso.trx
+      ErrorLogFile=${stateDir}/x-virtuoso.log
+      xa_persistent_file=${stateDir}/x-virtuoso.pxa
+
+      [Parameters]
+      ServerPort=${cfg.listenAddress}
+
+      [HTTPServer]
+      ${optionalString (cfg.httpListenAddress != null) "ServerPort=${cfg.httpListenAddress}"}
+    '';
+
+  };
+  
+}